Multiple Choice
Which of the following is common to both aerobic and anaerobic respiration?
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8. Respiration
Introduction to Cellular Respiration
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Which of the following is a reactant in cellular respiration?
A
Water ($H_2O$)
B
Glucose ($C_6H_{12}O_6$)
C
Carbon dioxide ($CO_2$)
D
ATP
Verified step by step guidance1
Step 1: Begin by recalling the overall chemical equation for cellular respiration, which is: . This equation represents the process where glucose and oxygen are converted into carbon dioxide, water, and energy (ATP).
Step 2: Identify the reactants in the equation. Reactants are the substances that are consumed during the reaction. In cellular respiration, the reactants are glucose () and oxygen ().
Step 3: Compare the options provided in the question to the reactants identified in the chemical equation. Glucose () is clearly a reactant in cellular respiration.
Step 4: Eliminate the other options that are not reactants. Water () and carbon dioxide () are products of cellular respiration, not reactants. ATP is also a product, as it represents the energy generated during the process.
Step 5: Conclude that glucose () is the correct answer because it is one of the reactants consumed during cellular respiration.
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